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Contract OI history

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Oct 30, 2026 EXPIRATION

MSFT $425.00 Put

MSFT261030P00425000

Latest saved OI245Oct 23, 2026
Last change+7vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $425.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2451220 2026-10-09: 200 OI2026-10-13: 236 OI2026-10-14: 236 OI2026-10-15: 236 OI2026-10-16: 236 OI2026-10-21: 238 OI2026-10-23: 245 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MSFT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing245+7
Oct 21, 2026238+2
Oct 16, 20262360
Oct 15, 20262360
Oct 14, 20262360
Oct 13, 2026236+36
Oct 09, 2026200No prior observation